EP1346938B1

EP1346938B1 - Winding and cutting machine for rolled paper

Info

Publication number: EP1346938B1
Application number: EP03004330A
Authority: EP
Inventors: Yasutaka Tsuruga
Original assignee: HANSHIN HORO Co Ltd
Current assignee: HANSHIN HORO Co Ltd
Priority date: 2002-03-04
Filing date: 2003-02-28
Publication date: 2005-08-17
Anticipated expiration: 2023-02-28
Also published as: US6915980B2; EP1346938A2; DE60301289D1; CN1442356A; EP1346938A3; US20030164420A1

Description

This invention relates to a winding and cutting machine for rolled paper, comprising a roller shaft for holding a roll from inside, a feeding roller and a feeding aid roller for holding and drawing paper from the roll for a predetermined length, a winding rotational body for winding the drawn-out paper of the predetermined length to be flat and folded, and a cutting blade disposed between the feeding roller and the winding rotational body. Such a machine is disclosed in US 2038447.
Conventionally, to cut and fold paper of a predetermined length from a roll (such as a roll of toilet paper) is conducted by hands. That is to say, the paper is drawn out of the roll set on a holder by one hand with eye-estimation, an upper cover of the holder is held by another hand, the drawn-out paper is pulled to be cut, and the cut paper is folded in appropriate width and number of sheets to use.
However, in the conventional manual work, the paper is not necessarily cut at perforation lines on the roll of which interval is about 23cm, drawn amount of the paper varies because the perforation lines are hard to find, the folding width and number of sheets are unstable, and the processes cause labor.
The present invention relates to a winding and cutting machine for rolled paper as initially defined and is characterized in that: the cutting blade is fixed on a position below a feeding guide so as to face the paper side, and both sides of the fixed cutting blade are fixed to fixation plates in an outer case, and a wind-up portion is disposed within a rotational circle of the winding rotational body to contact the paper wound by the winding rotational body for giving wind-up force to the paper to provide tensile force to the paper and to press the paper to the fixed cutting blade with a force to cut the paper into the predetermined length.
With the machine to be described in detail herebelow, paper of a predetermined length from a roll is wound flat, folded, and cut as to be in predetermined folding width and number of sheets. Furthermore detailed embodiments are described in the dependent claims 2, 3, 4, and 5.
The present invention will be described by way of example and with reference to the accompanying drawings in which:
Figure 1 is a front view showing an embodiment of the present invention;
Figure 2 is a left side view;
Figure 3 is a right side view;
Figure 4 is a front view showing a state in which an outer case is omitted;
Figure 5 is a working-explanatory view of a right side;
Figure 6A is a top view showing a fixed cutting blade;
Figure 6B is a top view showing the fixed cutting blade;
Figure 7A is a construction-explanatory view showing a winding rotational body;
Figure 7B is a construction-explanatory view showing the winding rotational body;
Figure 8A is a working-explanatory view;
Figure 8B is a working-explanatory view;
Figure 9A is a working-explanatory view;
Figure 9B is a working-explanatory view;
Figure 10A is a working-explanatory view;
Figure 10B is a working-explanatory view;
Figure 11A is a working-explanatory view;
Figure 11B is a working-explanatory view;
Figure 12A is a working-explanatory view;
Figure 12B is a working-explanatory view;
Figure 13A is a working-explanatory view;
Figure 13B is a working-explanatory view; portion;
Figure 14 is a perspective view showing formed paper;
Figure 15 is a working-explanatory view of a right side showing another embodiment of the present invention;
Figure 16A is a working-explanatory view of a principal portion showing still another embodiment of the present invention;
Figure 16B is a working-explanatory view of a principal portion showing still another embodiment of the present invention;
Figure 17A is a working-explanatory view of a principal portion showing a further embodiment of the present invention;
Figure 17B is a working-explanatory view of a principal portion showing a further embodiment of the present invention;
Figure 18A is a working-explanatory view of a principal portion showing a still further embodiment of the present invention;
Figure 18B is a working-explanatory view of a principal portion showing a still further embodiment of the present invention;
Figure 19 is a front view showing another embodiment of the present invention;
Figure 20 is a top view of a principal portion;
Figure 21 is a front view of a principal portion; and
Figure 22 is a side view of a principal portion.
Preferred embodiments of the present invention will now be described with reference to the accompanying drawings.
A winding and cutting machine for rolled paper relating to the present invention, as shown in Figures 1 through 5, is provided with a roller shaft 2 holding a roll 1 of paper from an inner side, a feeding roller 3 and a feeding aid roller 12 to hold paper 1a of the roll 1 and draw out for a predetermined length, a winding rotational body 4 to wind the drawn-out paper 1a of the predetermined length in a flat and folded state, and a fixed cutting blade 5 disposed between the feeding roller 3 and the winding rotational body 4 which is constructed as to press the paper 1a to the fixed cutting blade 5 to cut into the predetermined length by winding the paper 1a and giving tension to the paper 1a.
And, formed paper M, formed by the winding rotational body 4 winding the paper 1a of the predetermined length in flat and folded state, is ready to use as shown in Figure 14, and folding width H of the formed paper M is preferably 70mm to 100mm for comfortable use.
This winding and cutting machine is provided with an (cubic) outer case 7, an operation door 8 (on the right side) is attached to a front face of the outer case 7 through left and right hinge portions 8a (on a lower side) as to freely oscillate around a horizontal axis and open forward (on an upper side), and a maintenance door 9 (on the left side) is attached to the front face of the outer case 7 through left and right hinge portions 9a (on the lower side) as to freely oscillate around a horizontal axis and open forward (on an upper side). And, devices inside the outer case 7 such as a leakage breaker can be operated when the maintenance door 9 is opened. And, the operation door 8 is hitched to the outer case 7 with a hitching piece 8b as an upper part of the operation door 8 is freely attached and detached to the outer case 7.
And, an upper cover 10 is attached to an upper face of the outer case 7 as to freely oscillate around a horizontal axis and open upward. The roll 1 can be set in the outer case 7 to be used with opening the upper cover 10, and spare rolls 1 can be stored in the outer case 7. A rear face of the outer case 7 is attached to a wall of a toilet booth, etc. (not shown in Figures).
A stock case 60, which holds 5 to 10 units of formed paper M, is attached to a left side of the outer case 7. To describe concretely, the stock case 60 has plural (10 in the present embodiment) shelf boards 60a disposed like spokes of a wheel in a side view to store the formed paper M in storing portions 66 formed by the neighboring shelf boards 60a. This construction can dispose many shelf boards 60a (many storing portions 66) to store many units of the formed paper M in a small space> The stock case 60 may be constructed with the plural shelf boards 60a disposed horizontal to make horizontal shelves. In other words, neighboring shelf boards 60a are disposed as the distance between the shelf boards 60a increases from the base end to the forth end or parallel observed in a side view, and the storing portion 66 is widened toward the opening direction or parallel.
Both ends of the roller shaft 2 are connected to upper parts of left and right fixation plates 13 in the outer case 7 to rotate the roll 1 1 held by the roller shaft 2 inserted ti the roll 1 around a horizontal axis (along with the roller shaft 2).
The roll 1, such as a roll of toilet paper, is set in the outer case 7 by that the upper cover 10 of the outer case 7 is raised to take out the roller shaft 2, the roller shaft 2 is inserted to the roll 1, and the roller shaft 2 is attached again to the left and right fixation plates 13. This setting method is same as a conventional method to make conventional manual use possible in case of error of the machine and power outage. That is to say, in case of manual use, the upper cover is raised, the paper 1a is drawn out to the front side of the operation door 8, the upper cover 10 is closed to hold the paper 1a between the upper cover 10 and an upper edge of the operation door 8, and the paper 1a is cut as in the conventional use (cutting).
The feeding roller 3 is disposed below the roller shaft 2 and attached to the left and right fixation plates 13 in the outer case 7 as to rotate around a horizontal axis, and the roller 3 is rotated by a feeding motor 21 (with a reducer) disposed behind the roller 3 with a motor gear 22 engaged with a roller gear 3a of the roller 3.
And, the feeding aid roller 12 is disposed as to face the roller 3 and come close to and part from the roller 3 for holding the paper 1a of the roll 1 with appropriate contact pressure and drawing the paper 1a downward.
To describe concretely, a shaft portion of the aid roller 12 is held by long holes 6a (in back-and-forth direction) of attachment plates 6 attached to a rear face (inner face) of the operation door 8 as to freely move within the long holes 6a, and always elastically pushed toward the roller 3 by an elastic member (such as a compression spring). The aid roller 12 contacts the roller 3 with appropriate pressure in a closed state of the operation door 8 before operation. The operation door 8 can sufficiently maintain the closed state because only the pressing force of the aid roller 12 to the roller 3 (the elastic force of the elastic member 62) works as to push the operation door 8 from inside toward the front side, and no other mechanical forces work on the operation door 8. And, the operation door 8 and the aid roller 12 are omitted in Figure 4.
Contact (holding) portion of the roller 3 and the aid roller 12 on the paper 1a is set on a central portion of the width of the paper and approximately 2/3 of the width (70mm to 90mm) for good stability of the paper 1a when suspended (that is to say, the left half and the right half of the paper 1a are suspended uniformly).
The diameter D₁ of the roller 3 is preferably 25mm to 35mm because control is facilitated when the periphery of the roller 3 is same as folding width H of the formed paper M (refer to Figure 14). And, the paper 1a is sent out for the same length as the folding width H of the formed paper M by one rotation of the motor gear 22 by setting the gear ratio of the motor gear 22 to the roller gear 3a to be 1 : 1.
A counter dowel 31 protrudes from a part near the periphery of the motor gear 22, contacts a counter switch 32 disposed behind the motor gear 22 (pushes the counter switch 32 once for each rotation of the motor gear 22). The feeding motor 21 stops after rotations of the motor gear 22 of a predetermined number to make drawing amount of the paper 1a accurate. And, the counter switch 32 is provided with counter control, connected to a count setting portion 33 on the maintenance door 9 shown in Figure 1 to decide the rotation number of the feeding roller 3. The count setting portion 33 is to decide the amount of the paper 1a (number of folded sheets) wound to be folded by the winding rotational body 4.
Peripheral face of the roller 3 is formed coarse to certainly draw the paper 1a because the contact area with the paper 1a is small. Foe example, many small protrusions are disposed on the peripheral face of the roller 3, or the peripheral face of the roller 3 is formed like a gear. Instead of the roller 3, or with the roller 3, peripheral face of the aid roller 12 may be made coarse.
A groove 14 in the peripheral direction is formed on a central portion of the peripheral face of the roller 3, insertion pieces 15a of a feeding guide 15 (of flat plate) disposed below the roller 3 are vertically inserted from the lower side to the groove 14 and the both sides of the roller 3, and the paper 1a, drawn out by the rollers 3 and 12, can be certainly lead toward the lower side without interruption by the fixed cutting blade 5 disposed below the roller 3. That is to say, the drawn-out paper 1a, normally curling inward (backward) for rolling, is prevented from getting inside by the feeding guide 15 disposed on inner to the paper 1a.
The feeding guide 15 is, for example, attached to the left and right fixation plates 13 with a shaft portion 15b in horizontal direction disposed on a central position in vertical direction of the feeding guide 15 as to be oscillatable. Another feeding guide 15 may be disposed on an outer side (front side) of the paper 1a. And, the feeding guide 15 is preferably formed with metal or a material which generates little static electricity to prevent the paper 1a from sticking by static electricity.
The fixed cutting blade 5 is formed into a belt slightly larger than the width of the paper 1a, disposed on a position below the feeding guide 15 as an edge in a longitudinal direction faces the paper 1a side (front side), and both sides of the fixed cutting blade 5 are the fixation plates 13. The fixed cutting blade 5 may have a construction in which many teeth 5a of the same size are disposed on the edge 5b of which central portion in longitudinal direction is protruding (mounted) as shown in Figure 6A, or, large teeth 5b and small teeth 5b are disposed in turn on a flat edge 5b. With this construction, the paper 1a having a thickness such as a double paper can be cut. And, a concave portion between the neighboring teeth 5a is preferably arc-shaped to decrease entanglement of fibers of the paper 1a in cutting and generation of dust.
The winding rotational body 4 is disposed below the fixed cutting blade 5, provided with a rotation plate 40 and two (round) folding bars 41 disposed symmetric to an axis L of the rotation plate 40, is constructed as to wind the paper 1a, between the two folding bars 41, into flat and folded state.
In the winding rotational body 4, as shown in Figures 7A and 7B, for example, a base plate portion 48 is attached to base ends of the folding bars 41, a long hole 48a (in diameter direction) is formed on the base plate portion 48, the base plate portion 48 is attached to the rotation plate 40 through a fastener 61 (such as a bolt) inserted to the long hole 48a, and the two folding bars 41 come close to and part from each other. A concave groove 40a (having width of about 1mm) to which the base plate portions 48 fit in diameter direction, and the base plate portions 48 are stably fixed to the rotation plate 40. And, the fastener 61 is freely screwed to a tapped hole going through the rotation plate 40.
Interval of the two folding bars 41 is set as to wind the paper 1a sent out by two rotations of the feeding roller 3 with one rotation to decide the folding width H of the formed paper M (refer to Figure 14) wound by the two folding bars 41.
The rotation plate 40 is attached to the side plate 11 (the fixation plate 13) on the left side of the outer case 7 as to rotate around the horizontal axis L, and rotated by a folding motor 23 (with a reducer) disposed behind the rotation plate 40 with a motor gear 24 engaged with a gear formed on a peripheral face of the rotation plate 40.
The gear ratio of the motor gear 24 of the folding motor 23 to the gear on the rotation plate 40 is set to be 1 : 2 to make the number of folding by the winding rotational body 4 one for each rotation of the motor gear 24. In case of the paper 1a has certain thickness or strength such as a double paper, it is also preferable to repeat a movement in which the rotation plate 40 is rotated reversely for about 90 ° (after a pause) and rotated again in the former direction.
Further, a stopping dowel 52 protrudes from a part near the periphery of the motor gear 24. The stopping dowel 52 contacts a stopping switch 53 disposed above the folding motor 23 to stop the rotation plate 40 (the folding motor 23) at a position that a direction connecting the two folding bars 41 makes an angle of 0 ° to 15 ° with the horizontal face. This set angle is (as described later) to increase contact time of the paper 1a wound around the folding bars 41 with a wind-up portion 47.
Although a motor having dimensions of 42mm × 42mm observed in the axis L direction and output of 1W is sufficient for the feeding motor 21 and the folding motor 23 when the roll 1 is a roll of toilet paper, when the roll 1 is a roll of paper towel in new standard, a motor having dimensions of 60mm × 60mm observed in the axis L direction and output of 4W is sufficient.
A generator 44 which generates signals such as of light, electric wave, etc. is disposed on a lower position behind the rotational body 4, a receiver 45 for stopping the winding is disposed on a lower position in front of the rotational body 4, a receiver 46 for starting the driving is disposed on an upper position in front of the rotational body 4, and the generator 44 generates signals to the receiver 45 for stopping the winding and the receiver 46 for starting the driving simultaneously. Or two generators 44, each of which is for the receiver 45 and the receiver 46 respectively, may be disposed.
The receiver 45 for stopping the winding sends a signal to the stopping switch 53 when a signal is received from the generator 44, and the rotation plate 40 (the folding motor 23) is stopped when the stopping dowel 52 pushes the stopping switch 53 just after the signal is received. It is preferable to stop the winding rotational body 4 after 1 to 2 additional rotations with timer control etc., because the paper wound-up further.
The receiver 46 for starting the driving sends a signal to the motor 21 when receives a signal from the generator 44 to rotate the feeding roller 3 again for drawing out the paper 1a.
The folding bars 41 are disposed as to contact the whole area of lateral width of the paper 1a, and the paper 1a (the formed paper M) wound by the folding bars 41 is taken out of an opening portion 20, formed by a notched portion 18 on the right side of the operation door 8 and a notched portion on the front side of the right side plate 11, by holding a right side of the paper 1a.
The peripheral face of the folding bar 41 is formed smooth to slide the paper 1a easily on the peripheral face of the folding bar 41.
The wind-up portion 47, disposed within a rotational circle C of the winding rotational body 4 to contact the paper 1a wound by the winding rotational body 4 for giving wind-up force, is provided. The rotational circle C means a circle that parts of the winding rotational body 4 for winding the paper 1a (the folding bars 41) inscribe in rotation. To describe concretely, the (belt-shaped) wind-up portion 47 is suspended on a rear half of the rotational body 4 and in the rotational circle C to contact the paper 1a wound by the folding bars 41 for giving the wind-up force. Therefore, the wind-up portion 47 is well-stored in the main body, and not an obstacle to feeding of the paper 1a.
The wind-up portion 47 is, for example, made as that plural sheets of cloth (such as incombustible cloth) without entanglement of threads even when abraded are layered, and heat-welded by a high-frequency welding machine as to make lateral stripes (in crossing direction) as to make a concavo-convex wave pattern on a contact face with the paper 1a to increase contact pressure to the paper 1a for giving further-strong wind-up force.
Lateral width of the wind-up portion 47 is set to be smaller than the length of the folding bar 41, and the wind-up portion 47 is disposed within the length of the folding bar 41. Therefore, the wind-up portion 47 does not block the signal from the generator 44.
Vertical length of the wind-up portion 47 is set to be longer than the diameter of the rotational circle C as the folding bar 41 certainly contacts the wind-up portion 47 for a long time.
A weight 54 (of 3 to 10 grams) is attached to a lower end of the wind-up portion 47 to increase the wind-up force further. The weight 54 can be omitted. And, it is preferable to increase the wind-up force by 1 to 2 additional rotations of the rotational body 4.
An upper base end of the wind-up portion 47 is attached to a sliding plate 55 movable in back-and-forth direction to adjust a longitudinal position. To describe concretely, an adjusting lever 56 is attached to the sliding plate 55, and the sliding plate 55, for example, can be fixed on a desired longitudinal position as shown with a solid line and an imaginary line in Figure 5 by hitching to and releasing from a hitching concavo-convex portion of an adjusting window portion 57 going through the right side plate 11 and the right fixation plate 13 of the main body. Therefore, the longitudinal position of the sliding plate 55 by operation of the adjusting lever 56 out of the main body.
That is to say, as shown with the solid line in Figure 5, when the wind-up portion 47 is fixed on a front position, a folding  of the wind-up portion 47 on the folding bar 41 side is small, the contact pressure to the folding bar 41 increases, and the wind-up force becomes high. On the contrary, as shown with the imaginary line in Figure 5, when the wind-up portion 47 is fixed on a rear position, the folding angle 6 is large, the contact pressure to the folding bar 41 decreases, and the wind-up force becomes low. In short, the strength of the wind-up force can be regulated by position adjustment of the sliding plate 55 in longitudinal direction.
A paper-receiving tray 38, to stock the paper 1a sent out by the feeding roller 3, is disposed below the rotational body 4, and plural (5 in the present embodiment) metal wires 51, bent convex in side view, are disposed parallel on a bottom portion of the paper-receiving tray 38 with predetermined intervals (of 15 to 20mm, for example). And, peaks of the metal wires 51 are situated slightly forward to the end of the suspended paper 1a to stock the paper 1a, inclined to be stocked in a front part of the paper-receiving tray 38, can be stocked properly in a rear part of the paper-receiving tray 38. Therefore, although water drops may fall near the opening portion 20 of the outer case 7 when the machine is handled by wet hands, the paper 1a does not get wet by fallen water drops for the metal wires 51. Further, the paper-receiving tray 38 is stored in the outer case 7 as to be drawn out to take out (clean) the water and dust accumulated on the bottom portion.
Next, the working (function) of the first embodiment of the present invention is described. This is a case in which the count setting portion 33 (refer to Figure 1) is set to a folding number of 4 sheets (the minimum setting number).
First, the operation door 8 shown in Figure 3 is opened. In this case, the operation door 8 parts from a door switch 50 disposed behind the operation door 8, and the door switch 50 is "off" and entire power in the machine is cut off. Simultaneously, as shown in Figure 8A, the aid roller 12 attached to the operation door 8 is parted from the roller 3. And, the paper 1a drawn out of the roll 1 is led between the roller 3 and the aid roller 12, through the a front face of the feeding guide 15, and suspended until the fixed cutting blade 5, then, the operation door 8 is closed. In this case, the paper 1a is held by the roller 3 and the aid roller 12 with appropriate pressure by the elastic force of the elastic member 62, and the door switch 50 is on simultaneously to put on the power of the machine to start.
And, as shown in Figure 8B, the paper 1a of the (set) predetermined length is held and drawn out by the roller 3 and the aid roller 12, led between the folding bars 41, and sent into (accumulated in) the paper-receiving tray 38.
Then, the rotation of the roller 3 is stopped, when the rotational body 4 starts winding the paper 1a of the predetermined amount in a state that the folding bar 41 contacts the wind-up portion 47, each of the folding bars 41 contacts the front face and the reverse face of the paper 1a respectively as shown in Figure 9B. In this case, the folding bar 41 is parted from the wind-up portion 47, and the wind-up portion 47 is suspended vertically.
When the rotational body 4 is rotated further, as shown in Figure 10A, the folding bars 41, sliding on the base end side of the paper 1a, wind from the forth end side of the paper 1a (in the paper-receiving tray 38. In this case, the paper 1a is tightly wound around the folding bars 41 because the wind-up portion 47 is bent L-shaped by inertia of the weight 54. Although the paper 1a contacts the feeding guide 15 on the lower side, the lower side of the feeding guide 15 is not oscillated backward because pressing force of the paper 1a is small.
And, as shown in Figure 10B, the paper 1a wound around the folding bars 41 contacts the base end portion of the paper 1a to pull the paper 1a above the rotational body 4 downward (by frictional resistance). In this case, the paper 1a, given the tensile force, contacts the lower portion of the feeding guide 15 with excessive pressing force, the lower portion of the feeding guide 15 oscillates backward around the shaft portion 15b to escape, and the paper 1a firmly contact the fixed cutting blade 5.
Then, as shown in Figure 11A, the paper 1a, strongly pressed to the fixed cutting blade 5, is cut. In this case, even if fiber of the paper 1a above the fixed cutting blade 5 is entangled in the fixed cutting blade 5, this is released and the paper 1a of next process is easily fed because the lower side of the feeding guide 15 oscillates around the shaft portion 15b to return to its original position.
Then, the forth end side of the cut paper 1a is wound around the rotational body 4 as shown in Figure 11B, the paper 1a is moved out of the space between the generator 44 and the receiver 45 as shown in Figure 12A, the receiver 45 receives a signal from the generator 44 to detect that the paper 1a does not exist below the rotational body 4 (in the paper-receiving tray 38 and send a signal to the stopping switch 53, and the rotational body 4 is stopped as shown in Figure 12B when the stopping dowel 52 pushes the stopping switch 53 just after the signal is received.
In this case, when the formed paper M is wound around the rotational body 4, the base end of the paper 1a can be adjusted by the wind-up portion 47. That is to say, when the wind-up portion 47 is placed on the front position, the base end of the paper 1a is led to the front side, and, when the wind-up portion 47 is placed on the rear position, the base end of the paper 1a is led to the rear side.
And, a user inserts a hand into the opening portion 20 of the outer case 7 (refer to Figure 1), holds a holding area N (between the folding bars 41) of the formed paper M (folded in four sheets) as shown in Figure 13A, and pulls out of the rotational body 4 in the axis L direction. Then, as shown in Figure 13B, the receiver 46 for starting the operation receives a signal from the generator 44, detects that the formed paper M is not on the rotational body 4 (in other words, the formed paper M is not between the generator 44 and the receiver 46), and immediately recommences the operation of the feeding roller 3 to form formed paper M anew. The formed paper M pulled out of the rotational body 4 is already folded flat and ready to use as shown in Figure 14.
Next, Figure 15 shows another embodiment of the present invention. The following construction is different as clearly shown in comparison with Figure 5.
In Figure 15, an oscillation board 58, L-shaped in side view, is provided, and, a shaft portion 58a is disposed on a bent portion of the oscillation board 58 and fixed to the fixation plate 13 as the oscillation board 58 oscillates around the shaft portion 58a. The wind-up portion 47 is attached to an end of the oscillation board 58, and the adjusting lever 56 is attached to another end of the oscillation board 58. The adjusting lever 56 can be hitched to and released from a hitching concavo-convex portion of the adjusting window portion 57. And, when the adjusting lever 56 is oscillated downward, the wind-up portion 47 oscillates forward. That is to say, wind-up force (bending angle ) of the wind-up portion 47 is adjusted by oscillation of the oscillation board 58 around the shaft portion 58a as shown with imaginary lines and solid lines in Figure 15. As described above, the oscillation board 58 for oscillation movement can be disposed on a position behind the fixed cutting blade 5.
And, in Figure 15, the feeding aid roller 12 is connected to an end of a connection arm 64, another end of the connection arm 64 is connected to a shaft portion 63a of an attachment plate 63 attached to the rear face of the operation door 8, and the feeding aid roller 12 can be oscillated back and forth around the shaft portion 63a of the attachment plate 63. And, a scissors spring 65 is wound around the shaft portion 63a of the attachment plate 63, an end of the scissors spring 65 contacts the rear face of the operation door 8, another end of the scissors spring 65 contacts a small protruding portion 64a formed on the connection arm 64, and the scissors spring 65 elastically pushes the connection arm 64 as to oscillate backward. That is to say, the aid roller 12 is pressed to the feeding roller 3 by the elastic force of the scissors spring 65.
Next, Figures 16A and 16B show still another embodiment of the present invention. The following construction is different as clearly shown in comparison with Figure 5. That is to say, the fixed cutting blade 5 is disposed on a lower position behind the feeding guide 15 as the edge of the blade 5 is directed downward as shown in Figure 16A, and when tension is given to the paper 1a as shown in Figure 16B, the lower part of the feeding guide 15 oscillates backward, and the paper 1a is firmly pressed to the edge of the fixed cutting blade 5 to be cut. As described above, the members such as the wind-up portion 47 disposed behind the fixed cutting blade 5 are stored well (refer to Figure 5 and Figure 15) by the disposition of the fixed cutting blade 5 of which longitudinal direction in cross-section is vertical.
Next, Figures 17A and 17B show a further embodiment of the present invention. The following construction is different as clearly shown in comparison with Figure 5. That is to say, the fixed cutting blade 5 is formed unitedly with the feeding guide 15 on the lower end as the edge of the fixed cutting blade 5 is directed downward as shown in Figure 17A, and the feeding guide 15 is fixed as not to oscillate. When tension is given to the paper 1a as shown in Figure 17B, the paper 1a is firmly pressed to the edge of the fixed cutting blade 5 to be cut. As described above, production cost can be decreased and the members such as the wind-up portion 47 disposed behind the fixed cutting blade 5 are stored well further (refer to Figure 5 and Figure 15) because the lower end is formed as the fixed cutting blade 5.
Next, Figures 18A and 18B show a further embodiment of the present invention. The fixed cutting blade 5 shown in Figure 18A is different from the fixed cutting blade 5 shown in Figures 16A and 16B in that the edge is bent forward (toward the paper 1a side) to certainly cut the paper 1a. Similarly, the fixed cutting blade 5 shown in Figure 18B is different from the fixed cutting blade 5 shown in Figures 17A and 17B in that the edge is bent forward. The edge of the fixed cutting blade 5 is bent as not to interfere the feeding of the paper 1a in the next process.
Next, Figure 19 is a front view to explain another embodiment instead of the above-described embodiment of Figure 1, and Figures 20 through 22 show principal portions of Figure 19. With these Figures 19 through 22, constructions different from the above-described embodiments are mainly described below.
As shown in Figure 19, the folding motor 23 and the rotational body 4 (the rotation plate 40) are directly connected. That is to say, the folding motor 23 (with a reducer) is disposed in a control panel chamber 67 formed on a left lower position of the machine in Figure 19, and, for example, the folding motor 23 is attached to the fixation plate 13 and the rotation plate 40 is directly attached to a motor output shaft 23a (as shown in Figures 19 through 23). The rotation plate 40 is (although formed circular in the embodiments described above) composed of an arm piece having a thin rhomboid configuration.
And, the stopping dowels 52 are attached to the rotation plate 40 as to protrude. The stopping switch 53 such as a limit switch and a photosensor to detect the stopping dowels 52 is, for example, attached to the fixation plate 13.
With this construction, parts such as the motor gear 24 (refer to Figure 5) are omitted, the number of parts decreases, and the construction can be simplified and production cost can be reduced thereby. Further, an error that the paper 1a is accidentally entangled with the motor gear 24 in Figure 5 can be prevented.
As shown in Figures 20 through 22, it is preferable to apply the construction as shown in Figure 7 when the rotational body 4 is directly attached to the output shaft 23a of the motor 23. That is to say, it is preferable to add a construction in which the two folding bars 41 come close to and part from each other.
In the present machine not restricted to the embodiments described above, for example, the operation door 8 is detachable to facilitate checkup and repair. And, the operation of the machine may be started by a (separately provided) start button, or detecting conduction of weak voltage between the two folding bars 41. Further, the control of the rotation number of the feeding roller 3 may be timer control, the control of the rotation number of the winding rotational body 4 (namely, the end of the winding) may be counter control, timer control, or control by rotary encoder, and other modifications are possible within the scope of the present invention.
According to the present winding and cutting machine for rolled paper, the paper 1a of the predetermined length from the roll (of toilet paper) 1 is wound into flat and folded state of the predetermined folding width and number of sheets and cut, the flat and folded paper 1a is ready to use, handled by one hand, and easily used even by infants and people having handicapped hands. And, the paper 1a can be used with wet hands because the hands do not directly touch the roll 1, therefore, for example, used as useful and economical hand wiper in toilets neighboring swimming pools and public toilets, etc. Further, only the feeding roller 3 and the winding rotational body 4 may be provided with the driving means (such as a power unit and a transmission) which is not required for the fixed cutting blade 5, the construction of the machine is simplified, production cost can be reduced, and the control is made easy as a whole.
And, plural units of the formed paper M can be stored to use the formed paper M swiftly in need. This is preferable to users such as infants and elderly people. Further, the formed paper M stored in the stock case 60 can be easily taken out.
And, the formed paper M is prevented from being elliptic with bloated central parts by air resistance, and certainly made flat and folded for comfortable touch. And, the end edge of the formed paper M can be disposed on a predetermined position.
And, with simplified construction of the winding rotational body 4, the paper 1a, prevented from jamming and winding error, can be certainly wound to form the paper 1a flat and folded neatly.
Further, the folding width of the paper 1a (the formed paper M) wound by the winding rotational body 4 can be easily changed.
While preferred embodiments of the present invention have been described in this specification, it is to be understood that the invention is illustrative and not restrictive, because various changes are possible within the scope of the appended claims.

Claims

A winding and cutting machine for rolled paper, comprising a roller shaft (2) for holding a roll (1) from inside, a feeding roller (3) and a feeding aid roller (12) for holding and drawing paper (1a) from the roll (1) for a predetermined length, a winding rotational body (4) for winding the drawn-out paper (1a) of the predetermined length to be flat and folded, and a cutting blade (5) disposed between the feeding roller (3) and the winding rotational body (4) characterized in that:

the cutting blade (5) is disposed on a position below a feeding guide (15) so as to face the paper (1a) side, and both sides of the fixed cutting blade (5) are fixed to fixation plates (13) in an outer case (7), and

a wind-up portion (47) is disposed within a rotational circle (C) of the winding rotational body (4) to contact the paper (1a) wound by the winding rotational body (4) for giving wind-up force to the paper (1a) to provide tensile force to the paper (1a)and to press the paper (1a) to the fixed cutting blade (5) with a force to cut the paper (1a) into the predetermined length.
The winding and cutting machine for rolled paper as set forth in claim 1, wherein the winding rotational body (4) is provided with a rotation plate (40) and two folding bars (41) protruding from the rotation plate (40) on positions symmetric with respect to an axis (L) of the rotation plate (40), so that paper (1a) placed between the two folding bars (41) is wound into a flat and folded state, the two folding bars (41) being arranged so that they can freely come close to and part from each other.